"So, I have some news. No big deal, but I created another human being and then delivered him into the world at 12:30amThursday morning. Timmy and I named the little man Sonny and I’m in love," she began.

"I just want to talk about how I’m feeling," she wrote. "We’ve all heard mothers give the same speech about how life changing the love for your baby is, and it’s not like I didn’t believe it or anything, but I guess I couldn’t actually connect to those exact feelings until the doctor placed Sonny onto my chest."

Whitney Port

Whitney Port

Whitney also took to Instagram to share the exciting news, with a photo of a hand-painted sign that read "Welcome Baby Sonny."

"I made a human!" she wrote. "Everyone is so happy and healthy and we are home now. I'm going to try my very best to not be one of those moms whose feed is dominated by their baby but I can totally see how difficult it will be not to. I am beyond obsessed and in love and wish I could bottle this feeling for all of you out there."